Suehiro is a Japanese company known for its high-quality water stones that can be used to sharpen your hand tool blades. The softer surface of these stones allows the surface to wear away more quickly, continuously exposing fresh abrasive. The result is a consistent sharpening surface and a superior sharp edge to your blade. This 1200-grit unit provides a medium finish -- start your sharpening project with a coarse stone, and then move on to progressively finer grits.